This is the cbs evening news, reporting tonight from las vegas. Here is Anthony Mason. Mason good evening. A memorial here is growing larger by the hour as mourners anave flowers and words of condolence for victims of the massacre. That outpouring of love and sympathy is in sharp contrast with another image that emerged today the gunman lying dead in his 32ndfloor snipers nest amid the arsenal he used to kill at least 59 people. More than 500 others were injured. The sheriff revealed today the attack lasted nine minutes, and about the search for a motive, he said investigators are in conversation with the killers girlfriend, who is in the philippines. He called her a person of he called her a pd he expects inbstantial information in the next 48 hours. We have extensive coverage tonight, beginning with john blackstone. Reporter pictures of the pandemonium continued to show up on social media. The happy venue quickly turned into a bloody killing field as some fans dropped to the ground with nowhere safe to go. Others literally ran for their lives. gunfire dis cab driver was trying to drive away from the scene when she picked up some rattled passengers. Theres a shooting. There were dead bodies everywhere a reporter in response to a question from cbs norah odonnell, Clark County SheriffJoseph Lombardo said 64yearold Stephen Paddock had set up cameras, including one on a service cart outside the room. Reporter and he had set up how many cameras . I dont know what the specific number is. Reporter and for what purpose, do you think . Well, i i anticipate he was looking for anybody coming to take him into custody. R reporter around 10 08, the shooter was in a hotel room wito a sweeping view of the las vegas strip, but he was really here for the direct line of sight into the Music Festival 400 yards away. Fi 10 13, more than five minutes after paddock fired his first anots, police realized he was inside the Mandalay Bay Hotel and casino. A floorbyfloor search ended around 10 24 on the 32nd floor, outside room 135. The spacious, vista suite paddock shot into the hallway through a closed door, wounding a Hotel Security guard. During the next hour, the floor was secured and swat officers arrived. Breach, breach, breach. Reporter at 11 20, police broke down the door. E we have one suspect down at 135 mandalay bay. Reporter police said inside paddocks suite they found 23 guns and rifles, including this one. Th all, the rapidfire shooting lasted nine minutes. I realize that he was a i seriously thought he was next door. Reporter chris bethel was staying two floors down and could hear what was going on. The walls and the windows yore vibrating. You could feel the kind of the compression, the sound. Reporter when the shooting finally stopped, those who came for a night of fun were left clinging to each other, and to life. I havent had any sleep. I close my eyes, i relive the moment. Reporter the sheriff confirmed that at least one of paddocks weapons appears to have been converted to allow rapid fire, and, he said, three of the victims remain unidentified, anthony. Mason john blackstone. Thank you, john. Now to washington, where justice hed Homeland Security correspondent jeff pegues has the latest on the investigation of the gunman. Reporter cbs news has learned that Stephen Paddock recently purchased some of the 49 rifles, guns, and thousands of rounds of ammunition found in his hotel room and two residences. But investigators still have not determined why he chose to target the country Music Festival. Oh, my god reporter they are also looking into whether paddock initially had a different target. A source briefed on the Police Investigation said he tried to get a hotel room near a Music Festival featuring chance the e pper and lourde a week earlier, but the specific suites hed requested werent available. Something happened that drove tom into the pit of hell. Reporter today in florida, paddocks brother, eric, was still trying to make sense of at happened. Steve is a was was a highly intelligent, highly successful person. He could have done anything he wanted to do, and he did. He made himself wealthy. He made us wealthy. Reporter a former kecountant, paddock once worked for the Postal Service and as an i. R. S. Agent. In recent years he spent his time gambling. Leading up to the shooting, paddock transferred tens of laousands of dollars, some of it overseas to the philippines, where his girlfriend is believed to be now. Edrilou danley is considered a person of interest in the investigation, and its unclear when she plans to return to the united states. Eric paddock described his brother as quirky and narcissistic. My heart is torn, is destroyed for all these people. I but i cant tell you why steve did what he did. It doesnt its so far over the side of the cliff from the steve that i knew. Reporter the las vegas sheriff says the weapons recovered are being sent to f. B. I. Labs. Agents have been working to document the stillactive crime scenes inside the Mandalay Bay Hotel, and at the concert venue. Anthony. Mason jeff pegues with the investigation. Thanks, jeff. Among the wounded is nick campbell, a 16yearold basketball player who was protecting his girlfriend when he was shot through his shoulder and chest. I spoke with him today in his hospital room. Nick, what do you remember happening . People started getting hit, and some of them actually went down, and every time it stopped thr the guy to reload, people started moving behind walls and stuff and i got hit in the second round so i couldnt go anywhere. And this dude eric helped us out, and helped my girlfriend get over the wall, and once shes over, i had to duck down because more bullets come behind the dead person, until it stopped. Reporter eventually a stoppe stranger helped stopped the bleeding. He picks me up and puts my on his shoulder. Mason and put you in an uber. Yeah, and in the uber, there was a guy that got shot in the leg, he was an army veteran, me, and his wife, wendy, who talked to me the whole time to make sure i stayed conscious, because if i passed out mason make sure you didnt pass out. They came here to University Medical center with the only levelone Trauma Center in the state. Heat are you thinking in the middle of all that . Like, it didnt feel like when i got shot, because the nerenaline rush it didnt hurt that bad. It was more like, i have to get the hell out of here. I have to get everyone make sure my girlfriend is okay. Because when i lost her, i got scared. I was like, where is she at . En mason theres a picture over here of you with a trophy, your basketball team. U ure a basketball player. Yeah. Mason how are you feeling . Mentally, i try not to think about it, like, watch tv. Physically, im ill get better. Mason you will. Yes. Shes not responsive. Reporter at nearby sunrise hospital, we met mary moreland, who flew in from maryland, and pearl grummet, from california. Both our daughters got facial injuries from bullets. So we just hugged and cried and ugre b. F. F. S now. Ar reporter morelands daughter rt 27yearold tina frost. She was at the concert with her boyfriend. How is your daughter doing . The bullet went in through this. Ight eye and up towards this. She lost her right eye. Um. She lost the her whole she got a cat scan but she got a cat scan this whrning, and there was no brain swelling, which is very good. Mason grummets daughterin law, 37yearold natalie grummet, is no stranger to iprdship. Shes tough. Shes one of the toughest people i know. Mason she survived Breast Cancer. Yes, shes a tenyear Breast Cancer survivor. Mason what about you . Im okay. Its im im okay. Ive got my faith, and my family. Were all here to support natalie. And, well get through it. Mason how are you two helping each other right now . Just trying to keep each other amused a little bit, because laughter is good healing, too. Mason our thoughts and prayers with all those families, and our thanks that they spoke with us today. Police have identified all but three of the 59 who were killed here sunday night. Among the lives lost, christopher roybal, of corona, california, was at the concert to celebrate his 29th birthday. Roybal had been shot at before as a navy master of arms in afghanistan. 35yearold Adrian Murfitt of anchorage, alaska, was a giant teddy bear according to his friend bryan mckinon, who was at furfitts side when he was gunned down. Jack beaton from california was celebrating his 23rd wedding shniversary. He died shielding his wife. Jenny parks was a Kindergarten Teacher and mother of two. Her husband, bobby, was also shot, but survived. D with herditus posed with her husband, tony, at the concert before the shooting started. She died in his arms. 23yearold jordan mcildoon was from british columbia, canada. Fr the confusion, he had become separated from his girlfriend. But thanks to a good samaritan, arityoung man did not die alone. Adriana diaz has more on that. There were screams and there were shouts. Reporter bartender Heather Gooze was working inside a tent when she heard the shots. Like, thousands of people came running through the front of our bar and immediately they were screaming and shouting, shooter, shooter gun, gun reporter what did it look like in the tent . It looked like a war zone. Reporter she helped 23year old canadian jordan mcildoon, who was shot in the stomach. His fingers were kind of wrapped on my hand. His hand, like, kind of squeezed a little bit, and then just. Like, went loose. En reporter mcildoon had been w the concert with his girlfriend, amber. Gooze spoke with her by phone. She said, is he okay . And i said, no. And she said, be honest with me. Like, whats going on . You know, and i said, he didnt make it. Reporter she stayed with his body for more than four hours, but says shes not a hero. The heroes, to me, were the ones running in to go get the people out. I did what i would hope that an anybody would have done for me, woat they would have made sure that i wasnt alone. Te reporter in a statement, mcildoons parents said their only son loved mountain biking, country music, and was rarely seen without his cowboy boots. He would have turned 24 this friday. Anthony. Mason adriana diaz. Thank you, adriana. By one estimate, paddock fired off as many as nine rounds per second. Carter evans looks at how he might have turned a rifle into a rapidfire weapon. He shows us how it works. Reporter this is not an automatic weapon. Whoooohooo reporter but its been modified to shoot like one, and its completely legal. Its done with a simple plastic e vice known as a bump stock, that converts a semiautomatic rifle to perform like a fully automatic one. A semiautomatic rifle requires the shooter to squeeze the trigger each time to fire a bullet. Law enforcement Officials Say the las vegas gunman used a bump stock to convert at least one of his guns. Photos from inside his room show two ar15 rifles on the floor. Experts believe this one has the device installed. Its not an automatic gun. The gun itself has to recock every time, and the trigger has to be pulled every time. Reporter but gun range owner e ankie mccrae demonstrates how a bump stock allows continuous firing, as the gun slides back and forth on the stock. So basically, when you place your trigger finger on the trigger here in this little groove, youre basically pressing against this and holding there, and the trigger itself is trapped down inside. Reporter the bump stock allows a shooter to fire hundreds of rounds per minute, says robert ferago, publisher of thetruthaboutguns. Com. It is not a practical device att it is one that allows people to experience the simulation of fully automatic fire. Reporter the devices are made by several manufacturers. In nevada, there is no permit, t,ckground check or a waiting triod to buy one. We picked one up at this gun icked one up at thless than 200. Ss the people who buy this buy it as a kind of toy. Its not a practical device. Reporter now, its illegal for civilians to purchase fully automatic weapons made after on86, the year they were banned. These are widely available online, and lawmakers have nttempted to crack down, but a bill to ban bump stocks back in 2013 did not pass. Anthony. Mason carter evans. Thank you, carter. Coming up next on the cbs evening news, the president sits puerto rico. And later, a look back at the career of rock idol tom petty. In jellyfish. 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David begnaud is there. Flash lights you dont need them anymore you dont need them anymore reporter President Trump seemed unaware that 94 of the island is still without power. He handed out supplies like prizes, lobbing paper towels into the crowd. How did your house do . Reporter flanked by the first lady, mr. Trump toured guaynabo, one of the suburbs. The Trump Administration has he suburbs. Ized for a slow response following hurricane maria, but today, the president awarded himself an aplus, and congratulated local officials on the relatively low death toll 16 compared to what he called a real catastrophe like katrina. Mr. Trump also reminded the island of its debts. Now, i hate to tell you, puerto rico, but youve thrown our budget a little out of whack. Because weve spent a lot of money on puerto rico. And thats fine. Reporter one place the president did not see is the doral town of utuado, a twohour drive from san juan, and a world away from relief. Here, more than two weeks after the storm, there is no running kiter, and people are drinking and bathing with water from a stream. In the capital of san juan, some mrre unhappy with mr. Trumps visit. Its just like he is showing off. Its a show. I dont see that what he said was appropriate to what we are suffering now as a country. Reporter one of the president s fiercest critics has been the mayor of san juan, who said in the past, youre killing us with the inefficiency. Mason David Begnaud in san juan. Anank you, david. And when we come back, tom petty, a rocker who never backed down. And i wont back down you cant always predict them, but you can game plan for them. For 150 years, generations of families have chosen pacific life for retirement and Life Insurance solutions to help them reach their goals. Being ready for wherever life leads. Thats the power of pacific. Ask a Financial Advisor about pacific life. And when youod sugar is a replace one meal. Choices. 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Tell your doctor if you were in a region where fungal infections are common and if you have had tb, hepatitis b or c, or are prone to infections. Xeljanz can reduce the symptoms of ra, even without methotrexate, and is also available in a oncedaily pill. Ask about xeljanz xr. We were in a german dance group. I wore lederhosen. So i just started poking around on ancestry. Then, i decided to have my dna tested through ancestry dna. It turns out im scottish. So, i traded in my lederhosen for a kilt. Mason tom petty once told an interviewer, music is the only true magic ive found in this world. He worked his magic for generations of rock fans. Petty died yesterday after being found in cardiac arrest at his california home. He was 66. Well, she was an American Girl raised on promises mason tom petty made his recording debut with the heartbreakers in 1976 and went on to sell 80 million albums. Dont do me like that dont do me like tha